Sprinkler head housing



FIG. 1 is a top perspective view of a concealing cap for sealing-mounted fire sprinkler heads showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a front elevation thereof;

FIG. 4 is a bottom plan view thereof; and

FIG. 5 is a rear elevation thereof. 

The ornamental design for a sprinkler head housing, as shown. 